package com.example.lotterysystem.common.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.TimeUnit;

@Configuration
public class RedisUtil {
    private static final Logger logger = LoggerFactory.getLogger(RedisUtil.class);
    @Autowired
    private  StringRedisTemplate stringRedisTemplate;

    //--------------------String-------------------
    /**
     * 设置值
     * @param key
     * @param value
     * @return
     */
    boolean set(String key, String value){
        try {
            stringRedisTemplate.opsForValue().set(key,value);
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error ,set{}, {}",key,value,e );
            return false;
        }

    }
    /**
     * 设置值（过期时间）
     * @param key
     * @param value
     * @param time
     * @return
     */
    public boolean set(String key, String value, Long time){
        try {
            stringRedisTemplate.opsForValue().set(key,value,time, TimeUnit.SECONDS);
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error ,set{}, {},{}",key,value,time,e );
            return false;
        }
    }
    /**
     * 获取
     * @param key
     * @return
     */
    public String get(String key){
        try {
           return StringUtils.hasText(key)?
                   stringRedisTemplate.opsForValue().get(key) : null;

        }catch (Exception e){
            logger.error("RedisUtil error ,get{}, {}",key,e );
            return null;
        }
    }
    /**
     * 删除
     * @param key
     * @return
     */
    public boolean del(String... key){
        try{
            if(null != key && key.length > 0){
                if(key.length > 1){
                    stringRedisTemplate.delete(key[0]);
                }else {
                    stringRedisTemplate.delete(
                            (Collection<String>) CollectionUtils.arrayToList(key)
                    );
                }
            }
            return true;
        }catch(Exception e){
            logger.error("RedisUtil error ,del{}, {}",key,e );
            return false;
        }
    }

    /**
     * 判断key是否存在
     * @param key
     * @return
     */
    public boolean hasKey(String key){
        try {
            return StringUtils.hasText(key) ?
                    stringRedisTemplate.hasKey(key) :  false;
        }catch(Exception e){
            logger.error("RedisUtil error ,haskey{}, {}",key,e );
            return false;
        }
    }
}
